Don't do any archetype. The base druid has the best Wild Shaping. Only consider archetypes that don't alter your Wild Shape, like Menhir Savant.
Whats a good build for a druid? Like feats etc? He's never played a druid and as I said, Ive never built one. We dont want to build something that ends up gimped because we dont know what we're doing
For someone focused on melee, take Strength as your highest stat, and Wisdom/Con second/third.
Power Attack at 3rd, Natural Spell at 5th, Wild Speech at 7th, Powerful Shape at 9th.
Your first level feat can be whatever--I was human, so I grabbed Spell Focus: Conjuration and Augment Summoning for when we really needed an extra body. You would not be remiss going for something like Toughness and/or Tribal scars, though.
Actually, I wish I had known about Tribal Scars at the time, since my Druid actually is Kellid.